Instruction manual

CI-ControlWaveLP Service / 3-11
Table 3-3 - POST Status Codes (Continued)
Hex Code
Status LEDs
1 2 3 4 5 6
Definition
0A 0 1 0 1 0 0 issuing kbd ctrllr data byte.
0B 1 1 0 1 0 0 issuing pin 23, 24 blocking & unblocking.
0C 0 0 1 1 0 0 issuing kbd ctrllr NOP cmd next.
0D 1 0 1 1 0 0 testing CMOS RAM shutdown register.
0E 0 1 1 1 0 0 checking CMOS cksum, updating DIAG byte.
0F 1 1 1 1 0 0 initializing CMOS (if req’d every boot).
10 0 0 0 0 1 0 init CMOS status reg for date/time.
11 1 0 0 0 1 0 disabling DMA, interrupt ctrllrs.
12 0 1 0 0 1 0 disabling Port B, disabling video display.
13 1 1 0 0 1 0 init board, start auto-mem detect.
14 0 0 1 0 1 0 starting timer tests.
15 1 0 1 0 1 0 testing 8254 T2, for spkr, part B.
16 0 1 1 0 1 0 testing 8254 T1, for refresh.
17 1 1 1 0 1 0 testing 8254 To, for 18.2 Hz.
18 0 0 0 1 1 0 starting memory refresh.
19 1 0 0 1 1 0 testing memory refresh.
1A 0 1 0 1 1 0 testing 15usec refresh ON/OFF time.
1B 1 1 0 1 1 0 testing base 64KB memory.
1C 0 0 1 1 1 0 testing data lines.
20 0 0 0 0 0 1 testing address lines.
21 1 0 0 0 0 1 testing parity (toggling).
22 0 1 0 0 0 1 base 64KB mem read/write test.
23 1 1 0 0 0 1 system init before vector table init.
24 0 0 1 0 0 1 init vector table.
25 1 0 1 0 0 1 reading 8042 for turbo switch setting.
26 0 1 1 0 0 1 initiating turbo data.
27 1 1 1 0 0 1 any init after vector table init is next.
28 0 0 0 1 0 1 setting monochrome mode.
29 1 0 0 1 0 1 setting color mode.
2A 0 1 0 1 0 1 toggle parity before optional video ROM.
2B 1 1 0 1 0 1 init before video ROM check.
2C 0 0 1 1 0 1 control passed to video ROM.
2D 1 0 1 1 0 1 video ROM returned control.
2E 0 1 1 1 0 1 checking for EGA/VGA adapter found.
2F 1 1 1 1 0 1 no EGA/VGA found, r/w test of video.
30 0 0 0 0 1 1 looking for video retrace signal.
31 1 0 0 0 1 1 retrace failed, checking alt. Display.
32 0 1 0 0 1 1 alt found, checking video retrace signal.
33 1 1 0 0 1 1 compare switches w/actual adapter type.
34 0 0 1 0 1 1 setting display mode.
35 1 0 1 0 1 1 check ROM BIOS data area at seg 40h.
36 0 1 1 0 1 1 setting cursor for power-on msg.
37 1 1 1 0 1 1 displaying power-on message.
38 0 0 0 1 1 1 save cursor position.
39 1 0 0 1 1 1 display BIOS ident. String.
3A 0 1 0 1 1 1 display “Hit <DEL> to …” msg.
40 0 0 0 0 0 0 preparing vm test. vrfy from display.
41 1 0 0 0 0 0 preparing descriptor tables.
42 0 1 0 0 0 0 enter virtual mode for memory test.
43 1 1 0 0 0 0 enable inits for diagnostics mode.
44 0 0 1 0 0 0 init data for checking wraparound at 0:0.